问题
A numberof students _______ reading in the classroom now.
A:is
B:was
C:are
D:were
B:was
C:are
D:were
正确答案是：
同类题型
He _____ have completed his homework; otherwise, he would have been plying football with others. [ ]
-shirt looks nice. Is it______wool—-Yes, and it’s a ______Inner Mongolia.
his overcoat, the manager went outimmediately
How many times have you been to China?—In fact, it is the first time that I__________ here